diff --git a/Content.Server/Atmos/EntitySystems/AtmosphereSystem.GridAtmosphere.cs b/Content.Server/Atmos/EntitySystems/AtmosphereSystem.GridAtmosphere.cs
index 5891d64d4d..1f1a208b24 100644
--- a/Content.Server/Atmos/EntitySystems/AtmosphereSystem.GridAtmosphere.cs
+++ b/Content.Server/Atmos/EntitySystems/AtmosphereSystem.GridAtmosphere.cs
@@ -51,7 +51,7 @@ public sealed partial class AtmosphereSystem
                 continue;
 
             _currentRunAtmosphere.RemoveAt(i);
-            if (_currentRunAtmosphereIndex >= i)
+            if (_currentRunAtmosphereIndex > i)
                 _currentRunAtmosphereIndex--;
         }
     }